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s. 82; W. MOLTRUP. DIE AND DIE HOLDER'FOR DRAWING STEEL RODS No.423,334.

Patented Mar rm w!!! LR "m l E W12 NE'S'SES: @025, M04 a, 4 W

STEPHEN MOLTRUP AND VILLIAM MOLTRUP, OF BEAVER FALLS, PENN- SYLVANIA.

DIE AND DIE-HOLDER FOR DRAWING STEEL RODS.

SPECIFICATION forming part of Letters Patent No. 423,334, dated March 11, 1890.

Application filed August 6, 1889.

To all whom it may concern.-

Be it known that we, STEPHEN MOLTRUP and WILLIAM MoLTRUP, citizens of the.

United States, and residents of Beaver Falls, in the county ofBeaver and State of Pennsylvania, have invented certain new and useful Improvements in Dies and Die-Holders for Drawing Steel. Rods, &c.; and we do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

The object of our invention consists in providing certain new and useful improvements in dies and die-holders for the drawing, compressing, and polishing of metal bars or wire; and it consists more particularly in the means whereby ad ju stabilityand shape may be given to the die-blocks for the compression of the metal at various thicknesses.

With these objects in view our invention consists of the details of construction and arrangement of parts, as hereinafter more fully described and claimed, and pointed out in the drawings. I

Referring to the drawings forming a part of this specification, Figure 1 is a plan View of our improved device complete; Fig. 2, a detail view showing one of the segmental guideblocks; Fig. 3, a detail view of one of the adjustable wedge blocksg Fig. 4, a longitudinal section on line a: as, Fig. 1; Fig. 5, a detail view of one of the side dieblocks, and Fig. 6 a similar view showing one of the end blocks.

Similar letters of reference are used to designate corresponding parts throughout the entire specification and several views of the drawings.

The letter A is used to indicate the drawplate, said plate having asuitably-shaped re cess A formed therein. The recess extends for about one-half the thickness of the drawplate, and the bottom thereof is provided with the opening D and bolt-holes d cl. iVithin the circular recess is located the segmental guide-blocks E, the outer faces of which are curved sufficiently to conform to the contour of the wall of the circular recess, against which they abut, and the inner faces thereof are inclined. These guide-blocks are further pro= vided with beveled shoulders c 6. Located Serial No. 319,912v (N0 model.)

between the beveled shoulders of the guide blocks are the adjustable wedge-blocks F, the outer faces of which are inclined to correspond with the incline of the guide-blocks. The lower ends of the adjustable wedgeblocks are provided with the screw-threaded bolts G, which bolts pass through the boltholes d cl formed in the bottom of the circular recess, and have attached thereto the nuts g, by means of which the adjustable blocks are tightened or loosened upon the die-blocks. The lower ends of the inner faces of the seg' mental guide-blocks are provided with the groove h, which receives the bolt portion of the wedge when the same has been loosened.

The letters H H indicate the side die-blocks, said blocks being provided with the round or curved face 2', and the end die-blocks are rep resented by the letters H H. These end blocks have their inner faces rounded or curved and the sides thereof concaved in conformity with the curve of the face of the side blocks, so as to allow of the latter fitting snugly tllereimthus forminga square adjustable die provided with rounded or curved inner faces. lVhen in an adjusted position, these die-blocks rest upon the inner faces of the blocks F, and as these blocks are made adjustable it is obvious that the tighter they are screwed the greater will be the pressure of the die-blocks upon the passing metal. The faces of these die-blocks may be of any shape in which it is desired that the metal shall be compressed.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent of the United States, is

1. In adie and die-holder for drawing, compressing, and polishing metal bars, the combination, with the draw-plate, of die-blocks consisting of rectangular-shaped blocks having their inner faces curved or rounded and end blocks disposed between the ends of said side blocks so as to form a central opening, the ends thereof which bear against the side blocks being concaved, while their inner faces are convexed or rounded, and adjustableblocks against which the outer sides of the die blocks bear for regulating the pressure of the die upon the metal, substantially as set forth.

2. In combination with the herein-described die blocks, the apertured circular recessed draw-plate, segmental guides fitting in said recess, and the adjustable wedge-blocks, substantially as set forth.

3. In combination with the herein-described die-blocks, the apertured circular-recessed draw-plate, segmental guides, the outer faces of which are adapted to conform with the contour of the wall of the circular recess,provided with inclined inner faces, adjustable wedge-blocks, screw-threaded bolts attached to said adjustable blocks, and of the nuts for tightening or loosening said blocks and pressure of the dies upon the metal, substantially as and for the purpose set forth.

4:. The combination, with the herein-described die-blocks and draw-plate, of themclined segmental guideblock, shoulders formed upon said guides, adjustable Wedge blocks having their outer faces inclined correspondingly with the incline of the segmental guides, fitting between the shoulders of the guides, screw-bolts attached to the adjustable blocks, and the nuts for tightening or loosening the pressure of said blocks upon the die-blocks, substantially as and for the purpose herein shown and described.

5. In the herein-described draw-plate, the combination, with the die-blocks, of the inclined segmental guide-blocks, beveled shoulders formed on said blocks, a groove or channel located at the bottom of the inner face, an adjustable inclined Wedge fitting between the shoulders of the guide, screw-threaded bolts attached to said Wedge, and the nuts for tightening and loosening the pressure of the Wedge-blocks upon the die for regulating the size of the opening for the metal, substantially as herein set forth.

In testimony that We claim the foregoing as our own We have hereunto affixed our signatures in presence of two Witnesses.

STEPHEN MOLTRUP.

WILLIAM MOLTRUP.

Witnesses: v

J. F. MERRIMAN, J AMES BRITTAIN. 

